Tiny Needles to Fight Cancer

Using a novel laser-based technique, researchers at North Carolina State University have made arrays of tiny, hollow plastic needles that they used to insert fluorescent quantum-dot dyes into skin. Biomedical engineering professor Roger Narayan[1], who leads the research, says the microneedles and quantum dots, which have been tested on pigs, could be used to diagnose and treat skin cancer, and other chronic diseases.